- Dec 27, 2011
BTW... do not touch the outside of the OPHIR head with your fingers.... it will skew the readings until the head acclimates to the ambient air temp....
It had been sitting there for a few minutes without being touched by the time I used it though.
And if your head has the same characteristics as the OPHIR 20C heads you need to let the head electronically stabilize for 15 minutes after powering it on before taking any Laser power readings.
I'll try to power it up longer before taking a reading next time and see if it gets any closer to zero.